Fractures in the bottom flanges of twin girders that span Fremont Street triggered the closing of the Salesforce Transit Center in late September, some six weeks after it had opened. Courtesy of TJPA/LPI
SPECIAL REPORT The underlying causes of the trouble at San Francisco’s 4.5-bl
Brittle Steel Crack through bottom flange (right) is near 8-ft-deep midspan of transit center girder, where the hanger slots through the flange (left).
Request An RFI suggests a bottom-flange weld access hole instead of a web WAH, as noted in red by TT.
Uncut Hole (outlined) in bot
Strahman Valves is a world leader in the manufacture of high-quality wash-down equipment and industrial valve products. Since its creation in 1921 the company has earned a reputation for superior performance, innovative solutions to complex problems and long-term reliability.
Based in Pe
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ACI Services has released its dynamic variable orifice (DVO), designed to control line pressure pulsations in reciprocating compressor systems, flow metering stations and other systems that require reduced pressure waves
One of the long-standing philosophical questions of life is whether the light goes off in a refrigerator when the door is closed. For process engineers, an even deeper question relates to knowing what happens inside pipes. Like the refrigerator, it is difficult to see inside and ascertain the
When it comes to autofocusing manual lenses on film cameras there is really only one option: the unique and relatively short-lived CONTAX AX. Chunky sibling of the CONTAX RX and RTS cameras, the AX was released in 1996 and it remains the only camera ever produced that can autofocus manual focu
When we poll Slowtwitchers, Canyon is the brand of tri bike that generates the most intrigue. Today I’m writing about the Speedmax CF 7.0 as part of our series on Entry Level Plus tri bikes. These are tri bikes aboard which you could win the Hawaiian Ironman with a little sprucing. The bi
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